11100203012 has 12 divisors (see below), whose sum is σ = 19462643676. Its totient is φ = 5539447680.

The previous prime is 11100203011. The next prime is 11100203017. The reversal of 11100203012 is 21030200111.

It can be written as a sum of positive squares in 2 ways, for example, as 5831765956 + 5268437056 = 76366^2 + 72584^2 .

It is a super-2 number, since 2×11100203012² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11100202984 and 11100203002.

It is not an unprimeable number, because it can be changed into a prime (11100203011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2661113 + ... + 2665280.

It is an arithmetic number, because the mean of its divisors is an integer number (1621886973).

Almost surely, 2^11100203012 is an apocalyptic number.

It is an amenable number.

11100203012 is a deficient number, since it is larger than the sum of its proper divisors (8362440664).

11100203012 is a wasteful number, since it uses less digits than its factorization.

11100203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5326918 (or 5326916 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11100203012 its reverse (21030200111), we get a palindrome (32130403123).

The spelling of 11100203012 in words is "eleven billion, one hundred million, two hundred three thousand, twelve".